FORD 2014 E-450 v.1 - Manual (Page 211)

Note: If your battery has a cover/shield, make sure it is reinstalled after
the battery has been cleaned or replaced.
Note: Electrical or electronic accessories or components added to the
vehicle by the dealer or the owner may adversely affect battery
performance and durability.
Your vehicle is equipped with a Motorcraft® maintenance-free battery
which normally does not require additional water during its life of
service.
For longer, trouble-free operation, keep the top of the battery clean and
dry. Also, make certain the battery cables are always tightly fastened to
the battery terminals.
If you see any corrosion on the battery or terminals, remove the cables
from the terminals and clean with a wire brush. You can neutralize the
acid with a solution of baking soda and water.
When the battery is disconnected or a new battery installed, the
transmission must learn its adaptive strategy. As a result of this, the
transmission may shift firmly. This operation is considered normal and
will fully update transmission operation to its optimum shift feel.
It is recommended that the negative battery cable terminal be
disconnected from the battery if you plan to store your vehicle for an
extended period of time. This will minimize the discharge of your battery
during storage.
For information on transmission operation after the battery has been
disconnected, refer to Automatic transmission operation in the
Driving chapter.
Dual Batteries (If Equipped)
Your vehicle may be equipped with a frame-mounted battery located on
the passenger side frame rail, behind the front passenger door. This
battery is connected in parallel with the battery in the engine
compartment. Both batteries are used to start the vehicle.
Because your vehicle’s engine is electronically controlled by a computer,
some control conditions are maintained by power from the battery. When
the battery is disconnected or a new battery is installed, the engine must
relearn its idle and fuel trim strategy for optimum driveability and
performance. Flexible fuel vehicles (FFV) must also relearn the ethanol
content of the fuel for optimum driveability and performance. To begin
this process:
1. With the vehicle at a complete stop, set the parking brake.
210 Maintenance
2014 Econoline (eco)
Owners Guide gf, 1st Printing, November 2012
USA (fus)